\documentclass[14pt]{beamer}

\usetheme[compress]{Lausanne}


% optional: the .nav file can be either embedded into the PDF or next to it
\usepackage{embedfile}
\IfFileExists{\jobname.nav}{\embedfile{\jobname.nav}}{}

% again, optional: just to keep things together
\embedfile{\jobname.tex}
\embedfile{beamerthemeLausanne.sty}
\embedfile{S2.pdf}


\setbeameroption{show notes}

%\usepackage{pgfpages}
%\setbeameroption{show notes on second screen}


\title{What is SplitShow?}

\author[Christophe \& Gunnar]{Christophe Tournery and Gunnar Schaefer}

\titlegraphic{\includegraphics[width=0.15\linewidth]{S2.pdf}}


\begin{document}


\begin{frame}
    \titlepage
\end{frame}

\note[itemize]{
    \item The audience sees the slides, but you see your notes.
    \bigskip
    \item Or, if your don't have notes, you can use mirror mode.
}


\begin{frame}{Another Slide}
    \begin{itemize}
        \item Here is another slide.
        \item This one doesn't have a note.
        \item Slides without a note, are always shown on both displays.
    \end{itemize}
\end{frame}


\begin{frame}{Slides vs.{} Notes}
    Your slides can be in one of three modes:
    \begin{itemize}
        \item Just slides, no notes
        \item Slides and notes interleaved
        \item Superwide pages: slides and notes side-by-side
    \end{itemize}
\end{frame}

\note[itemize]{
    \item Just slides, no notes
    \begin{itemize}
        \item For presentations without any notes
    \end{itemize}
    \item Slides and notes interleaved
    \begin{itemize}
        \item BEAMER's .nav file is used to determine if a particular page is a slide or a note.
        \item The .nav file can be either embedded into the PDF (like it is in this one) or next to it in the same directory
    \end{itemize}
    \item Superwide pages: slides and notes side-by-side
    \begin{itemize}
        \item For this mode, include the \texttt{\footnotesize pgfpages} package and change the BEAMER option ``\texttt{\footnotesize show notes}'' to ``\texttt{\footnotesize show notes on second screen}''.
    \end{itemize}
}


\end{document}
